Overview  •  Well  •  Motor  •  Downhole sensor  •  Seal section  •  Pump 
Intake/Gas Separator  •  Tubing  •  Wellhead  •  Cable  •    J-box  •  Switchboard  •  Transformer  •   Conclusion

The surface cable is connected through the junction box. The function of the junction box is to vent any gases that have traveled under the armor of the cable to surface and prevent explosive mixtures from entering the switchboard.